Sire de Percy Geoffrey 
Sire de Percy was born about 1000 in Northumberland, England. Sire de Percy's father was William De Percy. His paternal grandfather was William Galfrid De Percy. He was an only child. Sire de Percy is no longer alive.
He had a biological son named 1st Baron De Percy.
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Children
1st Baron De Percy William
1st Baron De Percy was born in 1034 in Normandy, France. He died at the age of 63 in 1097 in Mountjoy, near Jerusalem.
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